[1] St Michaels Hosp, Li Ka Shing Knowledge Inst, MAP Ctr Urban Hlth Solut, Unity Hlth Toronto, 209 Victoria St, Toronto, ON M5B 1W8, Canada
[2] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada
[3] Univ Maryland, Sch Social Work, Baltimore, MD USA
[4] Univ Toronto, Inst Hlth Policy Management & Evaluat, Toronto, ON, Canada
[5] Yale Sch Publ Hlth, Ctr Interdisciplinary Res AIDS, New Haven, CT USA
[6] Mem Univ Newfoundland, St Johns Coll, Sch Social Work, St John, NF, Canada
[7] Yale Univ, Sch Nursing, New Haven, CT USA